[INFO] cloning repository https://github.com/AntonHakansson/rbreakout
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AntonHakansson/rbreakout" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonHakansson%2Frbreakout", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonHakansson%2Frbreakout'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ae24d8ccdd950e96ed21534c71e5680a953be47
[INFO] checking AntonHakansson/rbreakout against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonHakansson%2Frbreakout" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AntonHakansson/rbreakout on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AntonHakansson/rbreakout
[INFO] finished tweaking git repo https://github.com/AntonHakansson/rbreakout
[INFO] tweaked toml for git repo https://github.com/AntonHakansson/rbreakout written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/AntonHakansson/rbreakout already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 039aec552853becbd044a95f85054510b6dd2438cb1e1118fe1c26020a104fe3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "039aec552853becbd044a95f85054510b6dd2438cb1e1118fe1c26020a104fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "039aec552853becbd044a95f85054510b6dd2438cb1e1118fe1c26020a104fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "039aec552853becbd044a95f85054510b6dd2438cb1e1118fe1c26020a104fe3", kill_on_drop: false }`
[INFO] [stdout] 039aec552853becbd044a95f85054510b6dd2438cb1e1118fe1c26020a104fe3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 384b19481b913d7dd5c1e5642c10f5e912d131aaefcd7aaf46ee4b2313572918
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "384b19481b913d7dd5c1e5642c10f5e912d131aaefcd7aaf46ee4b2313572918", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]     Checking argparse v0.2.1
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking rbreakout v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:73:20
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn x(&self) -> (Unit) {
[INFO] [stdout]    |                    ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:76:20
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn y(&self) -> (Unit) {
[INFO] [stdout]    |                    ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:84:29
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_color(&self) -> &color::Color;
[INFO] [stdout]    |                             ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:95:16
[INFO] [stdout]    |
[INFO] [stdout] 95 |     color: Box<color::Color>,
[INFO] [stdout]    |                ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn get_color(&self) -> &color::Color {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:128:29
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn get_color(&self) -> &color::Color {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:248:29
[INFO] [stdout]     |
[INFO] [stdout] 248 |     fn get_color(&self) -> &color::Color {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:429:20
[INFO] [stdout]     |
[INFO] [stdout] 429 |         color: Box<color::Color>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:73:20
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn x(&self) -> (Unit) {
[INFO] [stdout]    |                    ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:76:20
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn y(&self) -> (Unit) {
[INFO] [stdout]    |                    ^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:84:29
[INFO] [stdout]    |
[INFO] [stdout] 84 |     fn get_color(&self) -> &color::Color;
[INFO] [stdout]    |                             ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:95:16
[INFO] [stdout]    |
[INFO] [stdout] 95 |     color: Box<color::Color>,
[INFO] [stdout]    |                ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn get_color(&self) -> &color::Color {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:128:29
[INFO] [stdout]     |
[INFO] [stdout] 128 |     fn get_color(&self) -> &color::Color {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:248:29
[INFO] [stdout]     |
[INFO] [stdout] 248 |     fn get_color(&self) -> &color::Color {
[INFO] [stdout]     |                             ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:429:20
[INFO] [stdout]     |
[INFO] [stdout] 429 |         color: Box<color::Color>,
[INFO] [stdout]     |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn color::Color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.44s
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "384b19481b913d7dd5c1e5642c10f5e912d131aaefcd7aaf46ee4b2313572918", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "384b19481b913d7dd5c1e5642c10f5e912d131aaefcd7aaf46ee4b2313572918", kill_on_drop: false }`
[INFO] [stdout] 384b19481b913d7dd5c1e5642c10f5e912d131aaefcd7aaf46ee4b2313572918